Improvement in furnaces for smelting and for other purposes



' inches from the face of the furnace.

- row of fire-brick.

DNrrEn STATES P TENT I Urrrcfin.

JOHN THOMAS, or MIDDLESBROUGH, ENGLAND, ASSIGNOR TO HIMSELF, WM. BACON, HARRISON GROVES, AND HUGH OHAYTOR, OF SAME PLACE.

IMPROVEMENT IN FURNACES Fp R SMELTING AND FOR OTHER PURPOSES.

Specification formingpart of Letters Patent No. 00,566, dated March 8, 1870.

The chief" object of my invention is to construct air or blast furnaces which will the better withstand the action of heat and scouringfluxes in the melting of iron, copper, or other metals, or in the smelting of iron ores, copper ores, or slags, or scoria, or other ores conttining metals. i

The main features of my invention, in addition to the general arrangement or combination of the parts, are the construction of waterboshes, as hereinafter described, and the employment of spikes on the water-boshes, as

hereinafter described.

These improvements will be fully understood by the following description and drawings hereunto annexed, of which- 1 Figure 1 is a side elevation, Fig. 2 a-sectional elevation, and I ig. 3 a plan, one-half being in transverse section, of afurnace constructed according thereto.

A A is the foundation-plate of the furnace. B B are waste-water tanks. 0 O are bottom water-boshes, set back, say, four and a half D D are topwater-boshes, setback, say, one and a half inch. The water-boshes O C and D D are spiked inside, as shown, with spikes, say, one and a half inch longflo hold up a liningof fire-clay or other suitable material. E E is a a F F are\pillars supporting the water-entablature. G G are blast-tuyeres. H H are blastplpes. I I is the blast-entablature. J J is the water-entablature.

ture J to the boshes. L L are pipes for taking the water into the tuyeres. .M M are pipes O O are pipes for taking the waste water from K K are. .pipes for taking the water from the entablathe boshes. P Pare slag-holes. R is the slag-' spout; S, the slag-boggyQ T T is the lining, of fire-clay or other suitable material. U II is the casing of the chimney. V V are plates tov hold up the brickwork. W W are the charging-holes. around the charging-holes to protect the brickwork. Y Y is the brick-work inside the chimney. Z is the metal-spout.

Thespiked boshes U D hold up'the lining, which cannot be fiuxed away on account of the water in the boshes keeping the back of the lining comparatively cool.

I dispense with the spikes on the bottom boshes, D. These furnaces may-be made round or square, or of any other desired form. For air or reverberatory furnaces for smelting copper ores or other ores of metals, I build the bed of the furnace in the usual way up to and within four or six inches of the bottom, and then set the spiked \vater'boshes around the sides and bridge of the furnace, and line up against the spikes, as in the cupola or blast furnace. For a puddling-furnace for puddling cast-iron into wrought-iron, I set the spiked water-boshes around the sides and bridge of the furnace, as in the coppersmelting furnace. The spiked water-boshes also apply to gas and steam furnaces.

\Vhat I claim as my invention, and desire to f secure by Lett-ers Patent, is-

1. The jconstruction and arrangement of water-boshes having spikes cast or otherwise formed on their inner sides, in the manner and for the purpose substantially as herein set forth.

2. In combination with the saidspiked wa ter-boshes, the water-entablature J, pipes K, pipes N. and pipes 0, arranged and acting substantially. as herein set forth, and shown in the annexed drawings.

In witness whereof I, the said J OHN THOMAS, have hereunto set my hand this 26th day of November, 1869.

JOHN THOMAS.

Witnesses:

JOHN THOMAS, Jr.,

' St. Paul-"s Terrace, Middlesbrough. R. G. BACON,

Pairlion, Redcar, England.

X X are plates of east-iron In some cases 

